Note.ms

//猜数字
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <limits>
#include <string>
using std::cout;
using std::cin;
using std::endl;
using std::string;
using std::numeric_limits;
using std::streamsize;
int generateSecretNumber(int min, int max);
void displayGameIntro();
int selectDifficulty();
bool playGame(int min, int max);
bool askPlayAgain();
void clearInputBuffer();

int main() {
    srand(static_cast<unsigned int>(time(NULL)));
    
    displayGameIntro();
    
    do {
        int difficulty = selectDifficulty();
        int minNum = 1;
        int maxNum = 100;
        
        switch(difficulty) {
            case 1:
                maxNum = 50;   
                break;
            case 2:
                maxNum = 100;  
                break;
            case 3:
                maxNum = 200; 
                break;
        }
        
        bool isWin = playGame(minNum, maxNum);
        
        if (isWin) {
            cout << "\n?? 太棒了！你成功猜出了数字！" << endl;
        }
        
    } while (askPlayAgain());
    
    cout << "\n?? 感谢游玩，下次再见！" << endl;
    return 0;
}
int generateSecretNumber(int min, int max) {
    return rand() % (max - min + 1) + min;
}
void displayGameIntro() {
    cout << "=====================================" << endl;
    cout << "        C++ 升级版猜数字游戏         " << endl;
    cout << "=====================================" << endl;
    cout << "游戏规则：" << endl;
    cout << "1. 系统会生成指定范围的随机数" << endl;
    cout << "2. 你需要不断猜测，直到猜对为止" << endl;
    cout << "3. 系统会提示你猜的数字是大了还是小了" << endl;
    cout << "=====================================\n" << endl;
}
int selectDifficulty() {
    int choice = 0;
    cout << "请选择游戏难度：" << endl;
    cout << "1 - 简单 (1-50)" << endl;
    cout << "2 - 中等 (1-100)" << endl;
    cout << "3 - 困难 (1-200)" << endl;
    cout << "输入难度编号：";
    
    while (!(cin >> choice) || choice < 1 || choice > 3) {
        clearInputBuffer();
        cout << "输入无效！请输入1、2或3选择难度：";
    }
    
    clearInputBuffer();
    return choice;
}
bool playGame(int min, int max) {
    int secretNumber = generateSecretNumber(min, max);
    int guess = 0;
    int guessCount = 0;
    
    cout << "\n? 已生成 " << min << "-" << max << " 之间的随机数，开始猜测吧！" << endl;
    
    while (true) {
        cout << "\n请输入你的猜测：";
        while (!(cin >> guess)) {
            clearInputBuffer();
            cout << "输入错误！请输入一个整数：";
        }
        clearInputBuffer();
        
        guessCount++;
        
        if (guess < min || guess > max) {
            cout << "? 超出范围！请输入 " << min << "-" << max << " 之间的数字！";
            continue;
        }
        
        if (guess < secretNumber) {
            cout << "?? 猜小了！再往大猜猜～";
        } else if (guess > secretNumber) {
            cout << "?? 猜大了！再往小猜猜～";
        } else {
            cout << "\n?? 恭喜猜对了！你一共猜了 " << guessCount << " 次！" << endl;
            cout << "本次的神秘数字是：" << secretNumber << endl;
            return true;
        }
    }
}
bool askPlayAgain() {
    string choice;
    cout << "\n是否要重新开始游戏？(y/n)：";
    cin >> choice;
    clearInputBuffer();
    
    return (choice == "y" || choice == "Y");
}
void clearInputBuffer() {
    cin.clear();
    cin.ignore(numeric_limits<streamsize>::max(), '\n');
}

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